考慮基礎(chǔ)形式的土—結(jié)構(gòu)共同作用鋼框架抗震分析.pdf

1、同濟(jì)大學(xué)建筑工程系碩士學(xué)位論文考慮基礎(chǔ)形式的土—結(jié)構(gòu)共同作用鋼框架抗震分析姓名：周文歡申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：余紹鋒20070301AbstraetABSTRACTSeismicanalysisconsideringsoil—stmctureinteractionisoneofthemostcomplicatedproblemsinthefieldofcivilengineeringManyresearchershav

2、estudiedconcretestructureComparedwithconcretestructIlre，thestrengthofsteelmaterialishigherwhilethelateralstiffnessissmallerThesteelstructurehasdifferentdynamicbehaviorconsideringinteractionFirst，thispapersumseveralmethod

3、samongseismicanalysisconsideringsoilstructureinteractionsoilmodeIandthreestylesoffoundationincludingisolatedfoundationstripfoundationandcofferfoundationthedynamicimpedanceissimulatedwithspringsanddampers，thecoefficientso

4、fwhicharedeterminedbyasetofapproximateformulainwhichconsideringthefrequencydependencethefoundationshapeandtheembedmentdepthThemodelofsoilstructureissetupinthepackageofANSYSBymodelanalysisandthetimehistoryanalysis，theinte

5、ractionbetweensoilandupperstructureinthreefoundationswim9floorwerecalculatedinperiodsdisplacementandinternalforceTheresultsarccomparedwiththemodelconsideringfixedonthebottomofthecolumnandshowgoodagreementKeyword：soil—str